Inverted burner for gas lamps



No Mod-e1.)

D. W. SUGG. INVEBTED BURNER FOR GAS LAMPS.

Patented Aug. 2, 1892.

UNITED STATES PATENT OFFICE.

DAVID WV. SUGG, OF LONDON, ENGLAND.

INVERTED BURNER FOR GAS-LAMPS.

SPECIFICATION forming part of Letters Patent No. 479,922, dated August2, 1892.

Application filed February 21, 1887. Serial No. 228,285. (NomodeL)Patented in France March 28 1885, No. 167,948; in Italy June 1, 1886,No. 20,020, and in England December 15,1886,No.16,467.

To all whom it may concern.-

Be it known that I, DAVID WILLIAM SUGG, of VincentWorks,VincentStreet,in the city of Westminster, London, England, have invented a newand useful Improvement in Inverted Burners for Gas-Lamps, (which hasbeen patented by me in Great Britain by Patent No. 16,467, datedDecember 15, 1886; in France by patent of addition, dated February 12,1887, to original French Patent No. 167,948, dated March 28, 1885, andinItaly by patent of addition, No. 21,248, dated February 17, 1887, tooriginal Italian Patent No. 20,020, dated June 1, 1886,) of which thefollowing is a specification.

This invention relates to improvements in the inverted burner describedand shown in specification and drawings of my United States LettersPatent No. 407,622,dated July 23, 1889. In large burners constructed asdescribed in the said patent I have found that the jets of gas issuingfrom the holes in the steatit-e burner do not properly combine to form aperfect sheet of flame, but give it a striated or streaky appearance,and also that the flow of gas is not always evenly distributed, butsometimes passes more to one side than to the other, giving anirregularly-shaped flame, and causing the gas to smoke on that sidewhere the greater quantity of gas issues, owing to the want of anadequate supply of oxygen on that side to produce proper combustion, twodisadvantages which tend to impair to a considerable extent theefficiency of the burner and the advantages to be gained by the use ofwhat are now known as inverted lamps.

Now the objects of this invention are to overcome these disadvantagesand, first, to insure the separate jets combining, and thereby forming aperfect sheet of flame, and, second, to provide for the evendistribution of the gas on all sides of the burner.

In carrying out this invention I construct the burner substantially inthe manner described in my aforesaid Letters Patent; but instead ofpiercing the holes radially with a slight downward inclination, astherein set forth, I form them slightly tangential with the downwardinclination.

The means for distributing the gas consist of a short tube formed with aflange at its upper end and which is inserted in the burner with itsflange resting on the top. The length of the tube Will be such that itwill extend below the holes, so that the gas will be conveyed centrallyto the bottom of the burner and will be evenly distributed on all sides.

In the accompanying drawings, Figure 1 shows my improved burner in sideelevation, Fig. 2 in sectional elevation, and Fig. 3 a crosssection, onthe line of the holes, and Fig. 4: a slight modification. All thefigures are on an enlarged scale to more clearly show the invention.

A is the hollow head of the burner, which may be of hemispherical,semi-spheroidal, conoidal, or approximate convex form externally, asshown in Figs. 1, 2, and 4, and has provided within it a gas-chamber,the concave interior of which conforms substantially to its convexexterior. This chamber is of diameter larger than the passage by whichthe gas enters the burner. The holes I) b in the said head, throughwhich the gas issues, are in the sides of the said head and of itschamber a. The said holes have a downward and outward inclination, asshown in Figs. 2 and 4, and are also tangential to imaginary circlesconcentric to the axis of the burner, as shown in Fig. 3, so'that thegas debouches laterally from the burner in tangential streams anddownwardly. .By this means I produce a spiral movement of the severaljets which tends to unite them and to produce a sheet of flame which isfiat, or nearly so, on the part close to the burner. The currents of aircoming down directly onto the flames and at an angle to the jets cause achange in the direction of the jets and serve to spread them out, thusproducing a perfect sheet of flame. The number of the holes will dependupon the size of the same and can only be ascertained by experiment inthe manner described in my former application for a patent'; but I havefound that with holes of about 0.052 of an inch bore twenty-four holeswill give the best results.

B is the distributer or regulator consisting of a short tube having aflange around its upper end. This tube passes through the gas-inletopening in the top of the burner and extends nearly to the bottom of thehollow head thereof, with its lower end some distance below the row ofholes I) I), being supported in this position by its flange resting onthe top of the burner. By thus carrying the gas centrally in the burnerbelow the holes I) b, I insure that the gas shall be evenly distributedto the latter, and thus I obtain a regular and even flame, and byconstructing the regulator or distributer of a short tube with a flangeto rest upon the top of the burner I am enabled to easily apply it tothe burner.

In Fig. 4 I have shown the distributor-tube applied toa burner of theexact form shown in my former application for patent.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I wish it tobe understood that what I desire to claim, is-

A11 inverted burner having a head of we ternally-convex ,form and havingin said head a chamber a of concave form of larger diameter than itsinlet, said head being provided with holes b, openingthrough the sidewalls of said chamber in a downward direction and tangentially to animaginary circle concentrio to the axis of the burner, substantially asand for the purpose herein set forth.

DAVID XV. SUGG. lVitnesses:

A. S. BISHOP,

108 Liverpool Road, N. WALKER J. S. MERTEN,

17 Gracechurch Street, E. C.

